Mechanics

CONVERTIBLE ROOF

2003 Mercedes Benz SL500

Electrical problem
2003 Mercedes Benz SL500 V8 Two Wheel Drive Automatic 22800 miles

I have had no problenms at all with my vehicle dont drive it very often I put hin shop to have service be completed checked out A+ so I get home and proceed to put to p down when it stops mid way and visit workshop pops up on instrument panel never had any problem wit car then after this service I have problem and top will not go up or down and when I turn key off and take out it shows being lowered no movement stuck when I turn key bck on it say in operation like its moving but no action what can cause this or what is solution
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Sylvasurfa
January 22, 2010.



Hello .. thanks for the donation .. much appreciated

The roof should lower itself to the end position after 7 minutes of being stopped in wrong position .. if this does not occur .. something must be jamming it from moving .. you need to have a tachnician look at the vehicle ..

Monitoring of roof function
The vario roof operating sequence is stored in a sequence table for each direction of motion, which is compared with a search function (determines the current position of the vario roof). If these values do not coincide, either an emergency operation is performed or the vario roof sequence is interrupted and an error message is sent to the instrument cluster, depending on the error which has occurred.#
If the vario roof operating sequence is interrupted, the stop function is activated immediately, moving the vario roof to the end position in a controlled manner.
The following criteria interrupt the vario roof operating sequence:
Releasing vario roof switch
C. 15 OFF
Low voltage in vehicle power supply
Vehicle speed (v > 5 km/h)
Lock pawl rotary tumbler switch open
Trunk partition not closed (applies only for opening of vario roof)
Roll bar crash deployment active
Interrupt conditions resulting in damage or exceeding actuating request time
If the operating sequence is interrupted and the vario roof is not in a confirmed end position, the stop function becomes effective. It holds the vario roof hydraulically in the current position for t=7 min. If the stop function cannot be revoked by this time, the vario roof moves to the nearest mechanical end position under its own weight with hydraulic damping.

hope this helps


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Dave H
Jan 26, 2010.